US4618324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centri-lever orthodontic appliance
Assignee: Individual
•
Filing: 1985-01-28
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Granted: 1986-10-21
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Expires: 2005-01-28
Abstract
Abstract A novel intraoral orthodontic appliance for correcting an abnormal jaw condition, or malocclusion, in a patient. The appliance includes an elongate interjaw-force-transferring member having ends which terminate in generally parallel, coplanar closeable loops, with the loops being generally parallel to and spaced apart from the longitudinal axis of the member. A pair of attachment rings are fixed to teeth in different jaws. The loops extend through the attachment rings and are retained therein in a manner providing pivoting of the loops about an axis generally parallel with the plane of the loops. Such construction permits lateral and pivotable movement between the jaws, thereby allowing the patient to eat and speak without interference from the appliance, while still correcting the abnormal jaw condition. The loops may be easily attached to the rings by hooking them on and closing them around the rings with a tool such as a pair of pliers.
Inventors
- 👤 Philip J. Nord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:14
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/36
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
An intraoral orthodontic appliance extending between the teeth of the upper jaw and the teeth of the lower jaw comprising: an elongate extensible-contractable mechanism positioned laterally outwardly of the teeth in the upper and lower jaws, a ring mounted on the lower jaw and a ring mounted on the upper jaw, a first planar loop engaging one of said rings adjacent one end of said mechanism and means mounting said loop on said mechanism with such located laterally inwardly of the mechanism and outwardly of the teeth and in a substantially vertical plane, and a second planar loop engaging the outer ring adjacent the other end of said mechanism and means mounting said second loop on said mechanism with such located laterally inwardly of the mechanism and outwardly of the teeth and in a substantially vertical plane.
Claim 2
Dependent Claim
137 words
An intraoral orthodontic appliance extending between the teeth of the upper jaw and the teeth of the lower jaw comprising: an elongate extensible-contractable mechanism positioned laterally outwardly of the teeth in the upper and lower jaws, a ring mounted on the lower jaw and a ring mounted on the upper jaw, a first planar loop engaging one of said rings adjacent one end of said mechanism and means mounting said loop on said mechanism with such located laterally inwardly of the mechanism and outwardly of the teeth and in a substantially vertical plane, and a second planar loop engaging the outer ring adjacent the other end of said mechanism and means mounting said second loop on said mechanism with such located laterally inwardly of the mechanism and outwardly of the teeth and in a substantially vertical plane.
Claim 3
Dependent Claim
28 words
The appliance of claim 1, wherein one of said loops extends downwardly relative to the mechanism and the other of said loops extends upwardly relative to the mechanism.
Claim 4
Dependent Claim
68 words
The appliance of claim 1, wherein one of said rings is mounted on the lower jaw in a relatively forward position in the mouth and the other ring is mounted on the upper jaw in a relatively rearward position in the mouth and said first loop extends downwardly from the mechanism to said one ring and said second loop extends upwardly from the mechanism to said other ring.
Claim 5
Dependent Claim
98 words
An orthodontic device for intraoral mounting and malocclusion correction comprising: an elongate extensible and contractable telescopic mechanism, a first planar loop adjacent one end of said mechanism and means mounting said loop on said one end with the loop laterally spaced from the mechanism and occupying a plane paralleling the axis of the mechanism, and a second planar loop adjacent the other end of the mechanism and means mounting said second loop on said other end of the mechanism with the second loop laterally spaced from the mechanism and occupying a plane paralleling the axis of the mechanism.
Claim 6
Dependent Claim
98 words
An orthodontic device for intraoral mounting and malocclusion correction comprising: an elongate extensible and contractable telescopic mechanism, a first planar loop adjacent one end of said mechanism and means mounting said loop on said one end with the loop laterally spaced from the mechanism and occupying a plane paralleling the axis of the mechanism, and a second planar loop adjacent the other end of the mechanism and means mounting said second loop on said other end of the mechanism with the second loop laterally spaced from the mechanism and occupying a plane paralleling the axis of the mechanism.
Claim 7
Dependent Claim
28 words
The device of claim 4, wherein one of said loops extends downwardly relative to said mechanism and the other of said loops extends upwardly relative to said mechanism.
Claim 8
Dependent Claim
46 words
The device of claim 4, wherein said loops are malleable, and have a first configuration in which they each have an opening in a side thereof directed away from said elongate telescopic mechanism and are shapeable to a second configuration in which the opening is closed.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-20 | 1990-04-21 | 1990-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-20 | 1994-04-21 | 1994-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-20 | 1998-04-21 | 1998-10-21 | $7700.00 | Window Closed / Lapsed |